56 U'HEELER. [VOL. II. 



myrmecophiles of P. coarctata in North America the Staphy- 

 linid beetle Apocellns (?) sphaericollis Say, and in Europe 

 the two Pselaphid beetles : Trichonyx sulcicollis Rchbch and 

 Amanrojiy.v Mdrkcli Aube. 



STIGMATOMMA (AMBLYOPONE) PALLIPES HALDEMANN. 



Although two species of Stigmatomma are known from south- 

 ern Europe (S. dcnticnlatiim Roger and 5. impressifrons Emery), 

 both are of rare and local occurrence. On the former species 

 Emery 1 has published the following note: "Dr. Alessandro 

 Fosi had the good fortune to observe the nest of S. denticu- 

 latum while excavating antiquities at Verucchio near Rimini. 

 These nests were found on several occasions in the Umbrian 

 cinerary urns, and always at the surface of the layer of ashes 

 with bone fragments found beneath the earth which had per- 

 colated in between the lid and the original contents of the 

 urn. It was, however, impossible to obtain the winged indi- 

 viduals, nor could anything further be ascertained concerning 

 the habits of these singular subterranean ants. The popula- 

 tion of a nest which I had occasion to examine comprised 

 about forty individuals, three of which were females." 



Our American species, too, is considered to be an uncom- 

 mon insect, although it is widely distributed through eastern 

 North America, from Canada to North Carolina. 2 I have 

 found it both on the Island of Naushon, near Woods Holl, 

 Mass., and at Colebrook, Conn. In the former locality it was 

 very common in some rather open oak woods at the north end 

 of the island, under large stones, imbedded in rich vege- 

 table mold. Here, on August 6, I uncovered some thirty 

 nests in the course of three hours. At Colebrook, after 

 the most careful search, I succeeded in finding only three 

 nests (August 16 to 31), and these were in widely separated 

 localities. All the nests on Naushon Island contained great 

 numbers of cocoons, but in only three were there eggs or 

 larvae. One of these contained a few mature larvae ready to 



1 " Sopra Alcune Formiche," etc., loc cit., p. 3. 



2 Emery, " Beitrage," etc., loc. cit. ; Forel, loc. cit. 



